In Ahnenreihe, my favorite blog in German, my friend Richard has been busy replying to frequent asked questions, some of them by monocausalists. This is one of the FAQs:
The Jews are our only problem. Christianity is only a part of the Jewish problem.
That should account for Alexander the Great or the Aryan founder of Buddhism, or the extinct northern Egyptians, Persians and Tocharians.
Alexander the Great commanded his soldiers to marry Asian non-whites. The Egyptians and Persians that Richard mentions can be understood in the context of other Ahnenreihe articles about the history of the white race in the Ancient World, which includes the history of mongrelization in Egypt, Persia and the north of the Tarim Basin where the Tocharians lived.
Without the help of Jewish depredations all of these peoples committed what I call the sin against the holy ghost: suicidal mongrelization. The red-haired Gautama Buddha for example, also known as Siddhārtha Gautama, had the brilliant idea of condemning an aspect of the old Aryan religion: the rigid caste system of the Brahmin which forbade not only intermarriage, but every form of social intercourse between the castes.
The unforgivable sin goes even beyond what we call the Christian problem; beyond all these recent entries where I’ve been quoting Jack Frost, as the ethno-suicidal tendencies mentioned by Richard and others cannot be blamed on any of the Abrahamic religions.
There’s something wrong with whites that predates their interaction with the Semite, either Jew, Christian or Muslim. Richard and I call this the Aryan problem. Kevin MacDonald has been researching some of it from his scientific point of view but he’s hesitant to blame Christianity.
I still believe that my “witches’ brew” metaphor is the best approach to the problem of white decline, even if some commenters have been trying to trivialize it with strawman arguments.